GeForce 9800 GTX vs GeForce GT 240 GDDR5 1GB

Intro

Compare that to the GeForce GT 240 GDDR5 1GB, which comes with GPU clock speed of 550 MHz, and 1024 MB of GDDR5 memory running at 850 MHz through a 128-bit bus. It also features 96 Stream Processors, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
GeForce 9800 GTX		140 Watts
	Difference: 70 Watts (100%)

Memory Bandwidth

Theoretically, the GeForce 9800 GTX should be a lot faster than the GeForce GT 240 GDDR5 1GB overall. (explain)

GeForce 9800 GTX		70400 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 16000 (29%)

Texel Rate

The GeForce 9800 GTX should be quite a bit (about 145%) faster with regards to texture filtering than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 25600 (145%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 9800 GTX is the winner, by far. (explain)

GeForce 9800 GTX		10800 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 6400 (145%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.